Table 2 Details of one electronic bibliographic database search query (MEDLINE)

MEDLINE (via OvidSP) [1932 hits] access day 20180730

1. exp Patient centered care/

2. exp Hospitals/

3. exp Health Services Research/

4. exp Quality of Health Care/

5. clinic*.tw.

6. hospital?.tw.

7. patient?.tw.

8. outpatient?.tw.

9. inpatient?.tw.

10. (medical adj1 (treatment or treatments or service or services or centre or centres or center or centers)).tw.

11. (health adj1 (service or services or centre or centres or center or centers)).tw.

12. health?care.tw.

13. health?system?.tw.

14. or/1-13

15. Nigeria.cp.

16. Nigeria.tw.

17. nigerian?.tw.

18. Lagos.tw.

19. Kano.tw.

20. Ibadan.tw.

21. "Benin City".tw.

22. Jos.tw.

23. Ilorin.tw.

24. Kaduna.tw.

25. Abuja.tw.

26. Enugu.tw.

27. Warri.tw.

28. or/15-27

29. exp Patient Satisfaction/

30. acceptabilit*.tw.

31. acceptance.tw.

32. attitude?.tw.

33. dissatisf*.tw.

34. judgement*.tw.

35. satisf*.tw.

36. view?.tw.

37. opinion*.tw.

38. perception?.tw.

39. perceived.tw.

40. preference?.tw.

41. preferred.tw.

42. or/29-41

43. exp Empirical Research/

44. exp Data Collection/

45. assessment?.tw.

46. evaluation?.tw.

47. intervention?.tw.

48. survey*.tw.

49. study.tw.

50. studies.tw.

51. trial.tw.

52. trials.tw.

53. questionnaire?.tw.

54. or/43-53

55. 14 and 28 and 42 and 5456. limit 55 to ed=”20070101-20180730”

57. (animals not (humans and animals)).sh.

58. 56 not 57